Boring sex? Ladies help me out!

My husband makes the comment that our sex life is boring all the time. I don't understand. We do anal. We use toys , we watch porn. I get on top. I go down on him ,I don't lay there like I'm a dead fish... I don't understand. Every time I ask him how I am boring, he can't give me an answer of how to improve. Am I truly boring him , or does this sound messed up? He works from home so I know he isn't cheating. I've even tried to suggest him getting out and having some fun with his friends. At least if I suspected cheating I would know what the hell was up!